IPC (different one)
posted by Prue .
Select all that apply.
A 0.200kilogram ball sits on a shelf 2.00 meters from the floor and then falls to a point 1.00 meter from the floor. Ignoring any affects due to friction, at this position _____.
1) its mechanical energy is 3.92 J
2) its potential energy is 3.92 J
3) its kinetic energy is 3.92 J
4) its potential energy is 1.96 J
5) its kinetic energy is 1.96 J
6) its mechanical energy is 1.96 J
what are the formulas for this??

Here are some tutorials that may help you:
http://search.yahoo.com/search?fr=mcafee&p=IPC+tutorials
Sra 
Thank you!